So what is the SqlOperatorTable you use, usually we use a SqlStdOperatorTable(for builtin operators) chained with a ListSqlOperatorTable(for UDFs), for your case, a single SqlStdOperatorTable is enough.
> Michael Tu <[email protected]>于2019年3月27日 周三上午8:37写道： > Hi All, > > I’m a new user to Apache Calcite and have a question about a > SqlValidatorException being thrown regarding SUM or COUNT aggregate functions > not found during SQL to relational algebra conversion using > SqlToRelConverter.convertQuery. > > The detailed question is on Stack Overflow: > https://stackoverflow.com/questions/55367966/converting-sql-query-with-aggregate-function-to-relational-algebra-expression-in > > <https://stackoverflow.com/questions/55367966/converting-sql-query-with-aggregate-function-to-relational-algebra-expression-in>. > > If anyone has any insights it would be greatly appreciated! > > Thanks in advance. > > -Michael
